Filter out external feature columns in consistency job comparison

[aarongreen-stripe]

Summary

Filters out contextual features from external parts from the comparison dataframe before computing consistency metrics with the logged data.

Why / Goal

The logged data from the online chronon system does not include the contextual features and the consistency job will fail if you don't filter out these features first.

Test Plan

• [x] Integration tested

Checklist

• [ ] Documentation update

Reviewers